EP 3951930 A4 20220525 - NEGATIVE ELECTRODE POLE PIECE, BATTERY CELL, LITHIUM ION BATTERY AND PREPARATION METHOD THEREFOR, AND DEVICE CONTAINING LITHIUM ION BATTERY
Title (en)
NEGATIVE ELECTRODE POLE PIECE, BATTERY CELL, LITHIUM ION BATTERY AND PREPARATION METHOD THEREFOR, AND DEVICE CONTAINING LITHIUM ION BATTERY
Title (de)
NEGATIVELEKTRODENPOLSTÜCK, BATTERIEZELLE, LITHIUM-IONEN-BATTERIE UND HERSTELLUNGSVERFAHREN DAFÜR SOWIE VORRICHTUNG MIT LITHIUM-IONEN-BATTERIE
Title (fr)
PIÈCE POLAIRE D'ÉLECTRODE NÉGATIVE, ÉLÉMENT DE BATTERIE, BATTERIE AU LITHIUM-ION ET SON PROCÉDÉ DE PRÉPARATION, ET DISPOSITIF CONTENANT UNE BATTERIE AU LITHIUM-ION
Publication
Application
Priority
- CN 201910471884 A 20190531
- CN 2020090018 W 20200513
Abstract (en)
[origin: EP3951930A1] The present application discloses a negative electrode plate, an electrode assembly, a lithium-ion battery and process for the preparation thereof, and apparatus containing lithium-ion battery. The negative electrode plate includes a negative electrode current collector; a negative electrode active material layer disposed on the negative electrode current collector; a binder-free inorganic dielectric layer disposed on one side of the negative electrode active material layer away from the negative electrode current collector, the inorganic dielectric layer comprising an inorganic dielectric material, and the inorganic dielectric layer including at least a main body portion disposed on the surface of the negative electrode active material layer, the main body portion having a thickness of from 30 nm to 1000 nm; and a lithium metal layer disposed on the surface of the inorganic dielectric layer away from the negative electrode active material layer.
IPC 8 full level
H01M 4/13 (2010.01); H01M 4/04 (2006.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/1393 (2010.01); H01M 4/1395 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01)
CPC (source: CN EP US)
H01M 4/0421 (2013.01 - EP); H01M 4/13 (2013.01 - CN US); H01M 4/133 (2013.01 - EP); H01M 4/134 (2013.01 - EP); H01M 4/1393 (2013.01 - EP); H01M 4/1395 (2013.01 - EP); H01M 4/366 (2013.01 - EP US); H01M 4/382 (2013.01 - EP US); H01M 4/386 (2013.01 - EP); H01M 4/587 (2013.01 - EP); H01M 4/62 (2013.01 - EP); H01M 4/628 (2013.01 - US); H01M 10/0525 (2013.01 - CN EP US); H01M 10/4235 (2013.01 - CN); H01M 2004/021 (2013.01 - CN EP US); H01M 2004/027 (2013.01 - CN EP US); Y02E 60/10 (2013.01 - EP)
Citation (search report)
- [Y] CN 107799721 A 20180313 - BEIJING WEILAN NEW ENERGY TECH CO LTD
- [Y] KR 20180134309 A 20181218 - LG CHEMICAL LTD [KR] & US 2019280286 A1 20190912 - SONG JUN HYUK [KR], et al
- [A] US 2019088987 A1 20190321 - HERLE SUBRAMANYA P [US]
- See references of WO 2020238628A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3951930 A1 20220209; EP 3951930 A4 20220525; EP 3951930 B1 20230412; CN 112018324 A 20201201; CN 112018324 B 20210730; CN 113488613 A 20211008; US 2022085361 A1 20220317; WO 2020238628 A1 20201203
DOCDB simple family (application)
EP 20814327 A 20200513; CN 201910471884 A 20190531; CN 2020090018 W 20200513; CN 202110779732 A 20190531; US 202117536118 A 20211129